Royal vole
British zoologist Oldfield Thomas first described the royal vole in 1907 as Craseomys regulus, with the type locality bein in Mingyong in South Korea, 170 km (106 mi) southeast of Seoul.[3] It has unrooted molar teeth, a characteristic shared by the very similar Craseomys shanseius but not C. rufocanus, and molecular analysis shows that it is a distinct species.Apart from the unrooted molar teeth, it can be distinguished from the grey red-backed vole by having a redder back, a more buffy (rather than greyer) underparts and a longer tail.It occupies a range of habitats including mountain forests, bamboo woodland, scrub-covered hillsides, rocky slopes, rough grassland, cultivated land and river banks.Predators include foxes, martens, weasels, raccoon dogs, owls, birds of prey and snakes.